## Uncategorized Questions

Topics that don't fit anywhere else.
Hikari_Dreamer_12
Posts: 18
Joined: Thu Jul 22, 2010 12:03 am
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### Uncategorized Questions

Natural numbers can't be negative, so how do you solve something like this:
{the natural numbers between -5 and 4}
Would it be no solution or something?

What is the equation for:
two-thirds of the way from -11 to 5? And what is two thirds of the way from -11 and 5?
How do you solve something like this:
x(x-2)=0 if the domain is all natural numbers?
A={a,1,2,3} List all of the subsets of A.

stapel_eliz
Posts: 1628
Joined: Mon Dec 08, 2008 4:22 pm
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{the natural numbers between -5 and 4}
There are some natural numbers between -5 and 4. List those.
two-thirds of the way from -11 to 5?
How far apart are these two numbers? (Hint: Subtract.)

What is one-third of that distance? (Hint: Divide.)

What then is two-thirds of the way from the lower number to the higher number? (Hint: Add.)
x(x-2)=0 if the domain is all natural numbers
What is the solution in the real numbers?

What part of this solution, if any, is also in the natural numbers?
A={a,1,2,3} List all of the subsets of A.
Where are you stuck on this one?

Hikari_Dreamer_12
Posts: 18
Joined: Thu Jul 22, 2010 12:03 am
Contact:

### Re:

two-thirds of the way from -11 to 5?
How far apart are these two numbers? (Hint: Subtract.)

What is one-third of that distance? (Hint: Divide.)

What then is two-thirds of the way from the lower number to the higher number? (Hint: Add.)
Could you please clarify on the last two steps? Like how to do it, with an example or something?

x(x-2)=0 if the domain is all natural numbers
What is the solution in the real numbers?

What part of this solution, if any, is also in the natural numbers?
Does that basically mean any natural numbers that can be fitted in are the answers? But how do you solve it/Is there an easier way?

A={a,1,2,3} List all of the subsets of A.
Where are you stuck on this one?
What's a subset? What IS the subset of A?

stapel_eliz
Posts: 1628
Joined: Mon Dec 08, 2008 4:22 pm
Contact:
1) Divide by 3 to find "one-third of the distance". If you're not sure where to go from there, try drawing the picture.

2) To learn how to solve quadratic equations, try here.

3) To get started on learning what sets and subsets are, try here.